In October 2002 and January 2003 the five tracks were individually Date of released in mp3 Type sent by eMail to members of the NPG Music Club: first the European members received a link to the full 13:37 version of 'Copenhagen' (it was replaced four days later with a 10:07 edit). Three months later Japanese members receieved eMails with links to 'Nagoya', 'Osaka' & 'Tokyo' and one day later the final track 'Empty Room' was made available to European members.

In 2004 the album C-Note was Date of released in wma Type exclusive in the 'Musicology store' of the NPG Music Club.

The title C-Note is an acronym of the track titles' names which are titled of the city of the recording.

The titles of the tracks on C-Note come from the cities in which the tracks were recorded in Denmark & Japan at the following dates and venues: